layui.define(['table', 'jquery', 'element'], function (exports) {
  "use strict";

  var MOD_NAME = 'menu',
    $ = layui.jquery,
    element = layui.element;

  var pearMenu = function (opt) {
    this.option = opt;
  };

  pearMenu.prototype.render = function (opt) {

    var option = {
      elem: opt.elem,
      async: opt.async,
      parseData: opt.parseData,
      url: opt.url,
      method: opt.method ? opt.method : "GET",
      defaultOpen: opt.defaultOpen,
      defaultSelect: opt.defaultSelect,
      control: opt.control,
      controlWidth: opt.controlWidth ? opt.controlWidth : 500,
      defaultMenu: opt.defaultMenu,
      accordion: opt.accordion,
      height: opt.height,
      theme: opt.theme,
      data: opt.data ? opt.data : [],
      change: opt.change ? opt.change : function () {
      },
      done: opt.done ? opt.done : function () {
      }
    }
    if (option.async) {
      if (option.method === "GET") {
        getData(option.url).then(function (data) {
          option.data = data;
          renderMenu(option);
        });
      } else {
        postData(option.url).then(function (data) {
          option.data = data;
          renderMenu(option);
        });
      }
    } else {
      //renderMenu中需要调用done事件，done事件中需要menu对象，但是此时还未返回menu对象，做个延时提前返回对象
      window.setTimeout(function () {
        renderMenu(option);
      }, 500);
    }

    // 处理高度
    $("#" + opt.elem).height(option.height)

    setTimeout(function () {
      $("#" + opt.control + " .control").on("mousewheel DOMMouseScroll", function (event) {

        var delta = (event.originalEvent.wheelDelta && (event.originalEvent.wheelDelta > 0 ? 1 : -1)) || // chrome & ie
          (event.originalEvent.detail && (event.originalEvent.detail > 0 ? -1 : 1)); // firefox

        if (delta > 0) {
          for (var num = 1; num < 20; num++) {
            setTimeout(function () {
              if ($("#" + opt.control + " .control ul").css('left').replace("px", "") < 0) {
                $("#" + opt.control + " .control ul").css("left", "+=2px");
              }
            }, 10)
          }
        } else if (delta < 0) {
          if (((Number)($("#" + opt.control + " .control ul").css("left").replace("px", "")) + ($("#" + opt.control + " .control ul").width() - $("#" + opt.control + " .control").width())) > 0) {
            for (var num = 1; num < 20; num++) {
              setTimeout(function () {
                $("#" + opt.control + " .control ul").css("left", "-=2px");
              }, 10)
            }
          }
        }
      });
    }, 1000)

    return new pearMenu(opt);
  }

  pearMenu.prototype.click = function (clickEvent) {
    var _this = this;
    $("body").on("click", "#" + _this.option.elem + " .site-demo-active", function () {
      var dom = $(this);
      var data = {
        menuId: dom.attr("menu-id"),
        menuTitle: dom.attr("menu-title"),
        menuPath: dom.attr("menu-title"),
        menuIcon: dom.attr("menu-icon"),
        menuUrl: dom.attr("menu-url"),
        openType: dom.attr("open-type")
      };
      var doms = hash(dom);
      if (doms != null) {
        if (doms.text() != '') {
          data['menuPath'] = doms.find("span").text() + " / " + data['menuPath'];
        }
      }
      if (doms != null) {
        var domss = hash(doms);
        if (domss != null) {
          if (domss.text() != '') {
            data['menuPath'] = domss.find("span").text() + " / " + data['menuPath'];
          }
        }
      }
      if (domss != null) {
        var domsss = hash(domss);
        if (domsss != null) {
          if (domsss.text() != '') {
            data['menuPath'] = domsss.find("span").text() + " / " + data['menuPath'];
          }
        }
      }
      if ($("#" + _this.option.elem).is(".pear-nav-mini")) {
        if (_this.option.accordion) {
          activeMenus = $(this).parent().parent().parent().children("a");
        } else {
          activeMenus.push($(this).parent().parent().parent().children("a"));
        }
      }
      clickEvent(dom, data);
    })
  }

  function hash(dom) {
    var d = dom.parent().parent().prev();
    if (d.prop("tagName") === "UL") {
      return null;
    }
    return d;
  }

  pearMenu.prototype.skin = function (skin) {
    var menu = $(".pear-nav-tree[lay-filter='" + this.option.elem + "']").parent();
    menu.removeClass("dark-theme");
    menu.removeClass("light-theme");
    menu.addClass(skin);
  }

  pearMenu.prototype.selectItem = function (pearId) {
    if (this.option.control != false) {
      $("#" + this.option.elem + " a[menu-id='" + pearId + "']").parents(".layui-side-scroll ").find("ul").css({
        display: "none"
      });
      $("#" + this.option.elem + " a[menu-id='" + pearId + "']").parents(".layui-side-scroll ").find(".layui-this").removeClass(
        "layui-this");
      $("#" + this.option.elem + " a[menu-id='" + pearId + "']").parents("ul").css({
        display: "block"
      });
      var controlId = $("#" + this.option.elem + " a[menu-id='" + pearId + "']").parents("ul").attr("pear-id");
      if (controlId != undefined) {
        $("#" + this.option.control).find(".layui-this").removeClass("layui-this");
        $("#" + this.option.control).find("[pear-id='" + controlId + "']").addClass("layui-this");
      }
    }

    $("#" + this.option.elem + " a[menu-id='" + pearId + "']").parents(".pear-nav-tree").find(".layui-this").removeClass(
      "layui-this");
    if (!$("#" + this.option.elem).is(".pear-nav-mini")) {
      let openEle = null;
      let openEleHeight = 0;
      $($("#" + this.option.elem + " a[menu-id='" + pearId + "']").parents('.layui-nav-child').get().reverse()).each(function () {
        if (!$(this).parent().is('.layui-nav-itemed')) {
          if (openEleHeight == 0) {
            openEle = $(this);
          } else {
            $(this).parent().addClass('layui-nav-itemed');
            $(this).css({
              height: 'auto',
            });
          }
          openEleHeight += $(this).children("dd").length * 48;
        }
      });
      if (this.option.accordion) {
        if (openEleHeight > 0) {
          var currentDom = openEle.parent().siblings('.layui-nav-itemed').children(".layui-nav-child");
          currentDom.animate({
            height: "0px"
          }, 240, function () {
            currentDom.css({
              height: "auto"
            });
            $(this).parent().removeClass("layui-nav-itemed");
            $(this).find('.layui-nav-itemed').removeClass("layui-nav-itemed");
          });
        }
      }
      if (openEleHeight > 0) {
        openEle.parent().addClass("layui-nav-itemed");
        openEle.height(0);
        openEle.animate({
          height: openEleHeight + "px"
        }, 240, function () {
          $(this).css({height: 'auto'});
        });
      }
    }
    $("#" + this.option.elem + " a[menu-id='" + pearId + "']").parent().addClass("layui-this");
  }

  var activeMenus;
  pearMenu.prototype.collaspe = function (time) {
    var elem = this.option.elem;
    var config = this.option;
    if ($("#" + this.option.elem).is(".pear-nav-mini")) {
      $.each(activeMenus, function (i, item) {
        $("#" + elem + " a[menu-id='" + $(this).attr("menu-id") + "']").parent().addClass("layui-nav-itemed");
      })
      $("#" + this.option.elem).removeClass("pear-nav-mini");
      $("#" + this.option.elem).animate({
        width: "220px"
      }, 150);
      isHoverMenu(false, config);
    } else {
      activeMenus = $("#" + this.option.elem).find(".layui-nav-itemed>a");
      $("#" + this.option.elem).find(".layui-nav-itemed").removeClass("layui-nav-itemed");
      $("#" + this.option.elem).addClass("pear-nav-mini");
      $("#" + this.option.elem).animate({
        width: "60px"
      }, 400);
      isHoverMenu(true, config);
    }
  }

  function getData(url) {
    var defer = $.Deferred();
    var symbol = url.indexOf('?') !== -1 ? '&' : '?';
    $.get(url + symbol + "fresh=" + Math.random(), function (result) {
      defer.resolve(result)
    });
    return defer.promise();
  }

  function postData(url) {
    var defer = $.Deferred();
    var symbol = url.indexOf('?') !== -1 ? '&' : '?';
    var huiToken = localStorage.getItem('hui-token');
    $.ajax({
      type: "POST",
      url: url + symbol + "fresh=" + Math.random(),
      headers: {"Hui-Token": huiToken},
      data: {},
      dataType: "json",
      success: function (result) {
        defer.resolve(result.data)
      }
    });
    return defer.promise();
  }

  function renderMenu(option) {
    if (option.parseData != false) {
      option.parseData(option.data);
    }
    if (Object.keys(option.data).length > 0) {
      if (option.control != false) {
        createMenuAndControl(option);
      } else {
        createMenu(option);
      }
    }
    element.init();
    downShow(option);
    option.done();
  }

  function createMenu(option) {
    var menuHtml = '<div style="height:100%!important;" class="pear-side-scroll layui-side-scroll ' + option.theme + '"><ul lay-filter="' + option.elem +
      '" class="layui-nav arrow   pear-menu layui-nav-tree pear-nav-tree">'
    $.each(option.data, function (i, item) {
      var content = '<li class="layui-nav-item" >';
      if (i == option.defaultOpen) {
        content = '<li class="layui-nav-item layui-nav-itemed" >';
      }
      var href = "javascript:;";
      var target = "";
      var className = "site-demo-active"
      if (item.openType == "_blank" && item.type == 1) {
        href = item.href;
        target = "target='_blank'";
        className = "";
      }
      if (item.type == 0) {
        // 创 建 目 录 结 构
        content += '<a  href="javascript:;" menu-type="' + item.type + '" menu-id="' + item.id + '" href="' + href +
          '" ' + target + '><i class="layui-inline layui-icon ' + item.icon + '"></i><span>' + item.title +
          '</span></a>';
      } else if (item.type == 1) {
        content += '<a class="' + className + '" menu-type="' + item.type + '" menu-url="' + item.href + '" menu-id="' +
          item.id +
          '" menu-title="' + item.title + '"  href="' + href + '"  ' + target + '><i class="layui-inline layui-icon ' + item.icon +
          '"></i><span>' + item.title + '</span></a>';
      }
      // 调 用 递 归 方 法 加 载 无 限 层 级 的 子 菜 单
      content += loadchild(item);
      // 结 束 一 个 根 菜 单 项
      content += '</li>';
      menuHtml += content;
    });
    // 结 束 菜 单 结 构 的 初 始 化
    menuHtml += "</ul></div>";
    // 将 菜 单 拼 接 到 初 始 化 容 器 中
    $("#" + option.elem).html(menuHtml);
  }

  function createMenuAndControl(option) {
    var control = '<div style="width: ' + option.controlWidth + 'px;white-space: nowrap;overflow-x: scroll;overflow: hidden;" class="control"><ul class="layui-nav pear-nav-control pc layui-hide-xs" style="width: fit-content;">';
    var controlPe = '<ul class="layui-nav pear-nav-control layui-hide-sm">';
    // 声 明 头 部
    var menu = '<div class="layui-side-scroll ' + option.theme + '">'
    // 开 启 同 步 操 作
    var index = 0;
    var controlItemPe = '<dl class="layui-nav-child">';
    $.each(option.data, function (i, item) {
      var menuItem = '';
      var controlItem = '';
      if (i === option.defaultMenu) {
        controlItem = '<li pear-href="' + item.href + '" pear-title="' + item.title + '" pear-id="' + item.id +
          '" class="layui-this layui-nav-item"><a href="#">' + item.title + '</a></li>';
        menuItem = '<ul  pear-id="' + item.id + '" lay-filter="' + option.elem +
          '" class="layui-nav arrow layui-nav-tree pear-nav-tree">';

        controlPe += '<li class="layui-nav-item"><a class="pe-title" href="javascript:;" >' + item.title + '</a>';

        controlItemPe += '<dd  pear-href="' + item.href + '" pear-title="' + item.title + '" pear-id="' + item.id +
          '"><a href="javascript:void(0);">' + item.title + '</a></dd>';
      } else {

        controlItem = '<li  pear-href="' + item.href + '" pear-title="' + item.title + '" pear-id="' + item.id +
          '" class="layui-nav-item"><a href="#">' + item.title + '</a></li>';

        menuItem = '<ul style="display:none" pear-id="' + item.id + '" lay-filter="' + option.elem +
          '" class="layui-nav arrow layui-nav-tree pear-nav-tree">';

        controlItemPe += '<dd pear-href="' + item.href + '" pear-title="' + item.title + '" pear-id="' + item.id +
          '"><a href="javascript:void(0);">' + item.title + '</a></dd>';

      }
      index++;
      $.each(item.children, function (i, note) {
        // 创 建 每 一 个 菜 单 项
        var content = '<li class="layui-nav-item" >';
        var href = "javascript:;";
        var target = "";
        var className = "site-demo-active";
        if (note.openType == "_blank" && note.type == 1) {
          href = note.node;
          target = "target='_blank'";
          className = "";
        }
        // 判 断 菜 单 类 型 0 是 不可跳转的目录 1 是 可 点 击 跳 转 的 菜 单
        if (note.type == 0) {
          // 创 建 目 录 结 构
          content += '<a  href="' + href + '" ' + target + ' menu-type="' + note.type + '" menu-id="' + note.id +
            '" ><i class="layui-inline layui-icon ' + note.icon + '"></i><span>' + note.title +
            '</span></a>';
        } else if (note.type == 1) {
          // 创 建 菜 单 结 构
          content += '<a ' + target + ' class="' + className + '" menu-type="' + note.type + '" menu-url="' + note.node +
            '" menu-id="' + note.id +
            '" menu-title="' + note.title + '" href="' + href + '"><i class="layui-inline layui-icon ' + note.icon +
            '"></i><span>' + note.title + '</span></a>';
        }
        content += loadchild(note);
        content += '</li>';
        menuItem += content;
      })
      menu += menuItem + '</ul>';
      control += controlItem;
    })
    controlItemPe += "</li></dl></ul>"
    controlPe += controlItemPe;
    $("#" + option.control).html(control + "</div>");
    $("#" + option.control).append(controlPe);
    $("#" + option.elem).html(menu);
    $("#" + option.control + " .pear-nav-control").on("click", "[pear-id]", function () {
      $("#" + option.elem).find(".pear-nav-tree").css({
        display: 'none'
      });
      $("#" + option.elem).find(".pear-nav-tree[pear-id='" + $(this).attr("pear-id") + "']").css({
        display: 'block'
      });
      $("#" + option.control).find(".pe-title").html($(this).attr("pear-title"));
      $("#" + option.control).find("")
      option.change($(this).attr("pear-id"), $(this).attr("pear-title"), $(this).attr("pear-href"))
    })
  }

  /** 加载子菜单 (递归)*/
  function loadchild(obj) {
    // 判 单 是 否 是 菜 单， 如 果 是 菜 单 直 接 返 回
    if (obj.type == 1) {
      return "";
    }
    // 创 建 子 菜 单 结 构
    var content = '<dl class="layui-nav-child">';
    // 如 果 嵌 套 不 等 于 空
    if (obj.children != null && Object.keys(obj.children).length > 0) {
      // 遍 历 子 项 目
      $.each(obj.children, function (i, note) {
        // 创 建 子 项 结 构
        content += '<dd>';
        var href = "javascript:;";
        var target = "";
        var className = "site-demo-active";
        if (note.openType == "_blank" && note.type == 1) {
          href = note.node;
          target = "target='_blank'";
          className = "";
        }
        // 判 断 子 项 类 型
        if (note.type == 0) {
          // 创 建 目 录 结 构
          content += '<a ' + target + '  href="' + href + '" menu-type="' + note.type + '" menu-id="' + note.id +
            '"><i class="layui-inline layui-icon ' + note.icon + '"></i><span>' + note.title + '</span></a>';
        } else if (note.type == 1) {
          // 创 建 菜 单 结 构
          content += '<a ' + target + ' class="' + className + '" menu-type="' + note.type + '" menu-url="' + note.node +
            '" menu-id="' + note.id + '" menu-title="' + note.title + '" menu-icon="' + note.icon + '" href="' + href +
            '" ><i class="layui-inline layui-icon ' + note.icon + '"></i><span>' + note.title + '</span></a>';
        }
        // 加 载 子 项 目 录
        content += loadchild(note);
        // 结 束 当 前 子 菜 单
        content += '</dd>';
      });
      // 封 装
    } else {
      content += '<dd style="background-color: transparent!important;"><a style="background-color: transparent!important;margin-left: 26px">目录为空</a></dd>';
    }
    content += '</dl>';
    return content;
  }

  function downShow(option) {
    $("body #" + option.elem).on("click", "a[menu-type='0']", function () {
      if (!$("#" + option.elem).is(".pear-nav-mini")) {
        var superEle = $(this).parent();
        var ele = $(this).next('.layui-nav-child');
        var heights = ele.children("dd").length * 48;

        if ($(this).parent().is(".layui-nav-itemed")) {
          if (option.accordion) {
            var currentDom = $(this).parent().siblings('.layui-nav-itemed').children('.layui-nav-child');
            currentDom.animate({
              height: '0px'
            }, 240, function () {
              currentDom.css({
                height: "auto",
              });
              $(this).parent().removeClass("layui-nav-itemed");
              $(this).find('.layui-nav-itemed').removeClass("layui-nav-itemed");
            });
          }
          ele.height(0);
          ele.animate({
            height: heights + "px"
          }, 240, function () {
            ele.css({
              height: "auto"
            });
          });
        } else {
          $(this).parent().addClass("layui-nav-itemed");
          ele.animate({
            height: "0px"
          }, 240, function () {
            ele.css({
              height: "auto"
            });
            $(this).parent().removeClass("layui-nav-itemed");
          });
        }
      }
    })
  }

  /** 二 级 悬 浮 菜 单*/
  function isHoverMenu(b, option) {
    if (b) {
      $("#" + option.elem + ".pear-nav-mini .layui-nav-item,#" + option.elem + ".pear-nav-mini dd").hover(function (e) {
        e.stopPropagation();
        var _this = $(this);
        _this.siblings().find(".layui-nav-child")
          .removeClass("layui-nav-hover").css({
          left: 0,
          top: 0
        });
        _this.children(".layui-nav-child").addClass("layui-nav-hover");
        _this.closest('.layui-nav-item').data('time') && clearTimeout(_this.closest('.layui-nav-item').data('time'));
        var height = $(window).height();
        var topLength = _this.offset().top;
        var thisHeight = _this.children(".layui-nav-child").height();
        if ((thisHeight + topLength) > height) {
          topLength = height - thisHeight - 10;
        }
        var left = _this.offset().left + 60;
        if (!_this.hasClass("layui-nav-item")) {
          left = _this.offset().left + _this.width();
        }
        _this.children(".layui-nav-child").offset({
          top: topLength,
          left: left + 3
        });
      }, function (e) {
        e.stopPropagation();
        var _this = $(this);
        _this.closest('.layui-nav-item').data('time', setTimeout(function () {
          _this.closest('.layui-nav-item')
            .find(".layui-nav-child")
            .removeClass("layui-nav-hover")
            .css({
              left: 0,
              top: 0
            });
        }, 50));
      })
    } else {
      $("#" + option.elem + " .layui-nav-item").off('mouseenter').unbind('mouseleave');
      $("#" + option.elem + " dd").off('mouseenter').unbind('mouseleave');
    }
  }

  exports(MOD_NAME, new pearMenu());
})
